Seaberry Pi CM4 Carrier Board

Where to buy RPi CM4 Module

Seaberry Board users may experience difficulty to procure RPi CM4 modules from legacy sources such as CanaKit or PiShop (out of stock), BUT modules are currently available from RPi Locator Portal

Product Description

The Seaberry Pi is a full-featured Raspberry Pi CM4 (Compute Module 4) carrier board in a standard Mini-ITX form factor that exposes the PCIe bus to a variety of different connector types, which include:

• One M.2 Key M slot for NVME SSD
• Four PCIe Mini connectors
• Four PCIe M.2 Key E connectors (with dual PCIe and dual Reset lines support)
• One x16 standard PCIe add-on card connector (x1 PCIe Lane functionality)
• One x1 PCIe side connector

The ability of Seaberry Pi to connect with commercial PCIe cards makes it a flexible tool for applications including:

• IoT appliances
• Industrial and home control and automation
• Smart cameras
• Smart audio processing engines
• Security appliances
• Wired and wireless routers and firewalls
• Wireless monitoring, IDS/IPS
• LTE and Bluetooth gateways
• Sophisticated AI inference accelerators
• Cloud edge computing devices
• Raspberry Pi CM4 development platform
• Drone compute and control hardware
• A complete development platform for any CM4 related project

The board is crafted as a standard Mini-ITX form-factor motherboard and supports all functionality that can be found on a Raspberry Pi CM4 IO board, including:

• RPi HAT interface
• Dual HDMI video interfaces
• Dual USB 2.0 interfaces
• MicroSD card slot
• Micro USB connector for configuration
• Real-time clock with external battery interface
• PWM fan connector
• SATA power connector
• Display and Camera interfaces

The board also features support for the latest 802.3bt PoE standard to allow up-to 100 W power delivery from qualified PoE power source (802.3bt PoE module to fit Seaberry Pi board and support 80-100W power workload is in works and will be available soon, but users can use any available Raspberry Pi PoE HAT observing maximum power consumption that will depend on PCIe peripherals plugged to the Seaberry Pi board).

Seaberry Pi design was inspired by our success with x12 M.2 Carrier Board with an idea to enable current and new Raspberry Pi CM4 module users to experiment and discover potential of PCIe bus interface available on CM4.

Specification

Form-factor:

• Standard Mini-ITX form factor board, 170 mm x 170 mm

PCIe:

• One 16-lane size vertical PCIe connector with x1 lane implementation (standard Mini-ITX location)
• One 1-lane PCIe side port connector (to allow to plug standard x1 PCIe add-on card on a left side)
• Four (4) PCIe Mini slots implementing x1 PCIe lane, USB 2.0, and I²C interfaces
• Four (4) PCIe M.2 Key E slots implementing x2 (dual) PCIe lanes, USB 2.0 interfaces
• One PCIe M.2 Key M slot to allow M.2 2280 NVME SSD implementing x1 PCIe lane

CM4 connectivity:

• Connector for standard Raspberry CM4 module (Regular or Lite)
• Pinout for standard Raspberry HAT

Power:

• Two 12 V power input connectors - one internal, one external, which are mutually inclusive to support power failover
• One RJ-45 capable of PoE 802.3bt (100 W) power input handling
• One standard SATA power header implementing 12 V, 5 V, and GND rails
• One PoE 4-pin header identical to CM4 I/O board and Raspberry Pi 4
• One standard PWM fan connector
• Two 5 V pin headers on RPi header
• Two 3.3 V pin headers on RPi header
• Eight GND pin headers on RPi header

Video:

• Two HDMI output ports

USB:

• Two USB 2.0 ports

Network And Connectivity:

• One network RJ-45 (also capable of PoE 802.3bt power handling)
• One RJ-45 implementing CISCO style RS232 serial console cable

RPi header I/O:

• 40-pin classic Raspberry Pi header
• Twenty-eight GPIO pins, including PWM, SPI, UART, I²C
• Two 5 V outputs
• Two 3.3 V outputs
• Eight GND pins
• Additional I²C bus header

Programming/Control:

• All identical to that on the CM4 I/O board
• One MicroSD card slot to program the CM4 Lite
• One Micro USB port to program the CM4 (not Lite) eMMC
• 2x7 row header for jumper-selected settings/controls

Real-Time Clock:

• external battery interface

Pictures and Videos

Seaberry Pi Pictures

Seaberry Pi Videos

Documentation

Seaberry Pi Board Documentation

Raspberry Pi CM4 PCI Express Device Compatibility Database

Our trusted RPi PCIe guru Jeff Geerling maintains a database of all so far tested and verified PCIe add-on cards that are compatible with RPi CM4. This project is maintained on GitHub; suggest new cards to test or share your own experiences there. These helpful resources can help you in your own PCIe testing on the Seaberry Pi, or can inspire you to create your own custom Seaberry Pi based projects!

Recent and VERY EXCITING Development News

Single-board computer maker Radxa has introduced a new computer-on-a-module featuring a Rockchip RK3566 processor and support for up to 8GB of RAM and 128GB of eMMC storage. This module will be compatible with Seaberry Pi board with a potential to fully unleash AI potential with single and dual Coral TPU offerings from Google. More detailed information is available here.

You would not even need to rely on Radxa as the only backup supplier, since the Pine64 SOQuartz module, also based on Rockchip RK3566 and compatible with Raspberry Pi CM4, should become available soon.